21523684

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2039}}^1$

素因数の和:2092

約数の個数: 48

約数和(自身を含む): 47980800

約数和(自身を除く): 26457116

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 754, 812, 1508, 2039, 2639, 4078, 5278, 8156, 10556, 14273, 26507, 28546, 53014, 57092, 59131, 106028, 118262, 185549, 236524, 371098, 413917, 742196, 768703, 827834, 1537406, 1655668, 3074812, 5380921, 10761842, 21523684]

約数ペア:

[(1, 21523684), (2, 10761842), (4, 5380921), (7, 3074812), (13, 1655668), (14, 1537406), (26, 827834), (28, 768703), (29, 742196), (52, 413917), (58, 371098), (91, 236524), (116, 185549), (182, 118262), (203, 106028), (364, 59131), (377, 57092), (406, 53014), (754, 28546), (812, 26507), (1508, 14273), (2039, 10556), (2639, 8156), (4078, 5278)]